Sech[z] gives the hyperbolic secant of z.

Sinh[z] gives the hyperbolic sine of z.

Tanh[z] gives the hyperbolic tangent of z.

Zeta[s] gives the Riemann zeta function \[Zeta](s). Zeta[s, a] gives the generalized Riemann zeta function \[Zeta](s, a).

A possible way of working with permutations is by relating them to the reorderings of the elements of a list. This is the standard point of view in the combinatorial approach ...

LogPlot[f, {x, x_min, x_max}] generates a log plot of f as a function of x from x_min to x_max. LogPlot[{f_1, f_2, ...}, {x, x_min, x_max}] generates log plots of several ...

Differentiation Total Derivatives Derivatives of Unknown Functions

Making Lists of Objects Collecting Objects Together Making Tables of Values

Modules and Local Variables Local Constants How Modules Work

Expectation[expr, x \[Distributed] dist] gives the expectation of expr under the assumption that x follows the probability distribution dist. Expectation[expr, x ...